MANILA – Giorgio Tsoukalos of "Ancient Aliens" believes we all have extraterrestrial DNA inside us, while "Vikings" star Katheryn Winnick is truly smitten with the Philippine islands.

As for the third season of "Celebrity Car Wars" starring Xian Lim and Diego Loyzaga, expect a lot of car crashes.

These are just some of the things the celebrity guests of History Con 2018 revealed to reporters on the event's opening day.

Check out the videos below:

1. Giorgio Tsoukalos on the “tremendous” opening ceremony

Giorgio Tsoukalos on the “tremendous” opening ceremony of #HistoryCon 2018; He’s amazed at how the event has grown “triple in size” since his last visit @vincepgarcia pic.twitter.com/fR5osiNfmL

— ABS-CBN News (@ABSCBNNews) August 10, 2018

2. Katheryn Winnick on what she's looking forward to most here at History Con

Katheryn Winnick on what she’s looking forward to most here at #HistoryCon 2018: Can’t wait to meet all the strong shield maidens here in the Philippines @vincepgarcia pic.twitter.com/GJcOHvrria

— ABS-CBN News (@ABSCBNNews) August 10, 2018

3. Jaime Dempsey of "Ride N' Seek," who calls PH her "second home," on what she misses the most about the country

Jaime Dempsey of ‘Ride N’Seek,’ who calls PH her “second home,” on what she misses the most about the country #HistoryCon | via @vincepgarcia pic.twitter.com/gap6jXn87v

— ABS-CBN News (@ABSCBNNews) August 10, 2018

4. Mong Chin of "Who Runs the World" on what she learned from filming an episode in Cebu

Who Runs the World’s Mong Chin on what she learned from filming an episode in Cebu#HistoryCon | via @vincepgarcia pic.twitter.com/86P5WMgJQX

— ABS-CBN News (@ABSCBNNews) August 10, 2018

5. Xian Lim and Diego Loyzaga on what fans can look forward to in the third season of "Celebrity Car Wars"

Xian Lim and Diego Loyzaga on what fans can look forward to in the third season of “Celebrity Car Wars”: We played soccer using cars #HistoryCon | via @vincepgarcia pic.twitter.com/87BoCvzF7z

— ABS-CBN News (@ABSCBNNews) August 10, 2018

6. Katheryn Winnick reveals her character in "Vikings," Lagertha, was supposed to have been killed off during the second season

Katheryn Winnick reveals her character in ‘Vikings’ was supposed to be killed off during the second season; she shares how she fought for Lagertha to be kept alive#HistoryCon | via @vincepgarcia pic.twitter.com/2XEckHFBuk

— ABS-CBN News (@ABSCBNNews) August 10, 2018

7. Giorgio Tsoukalos calls our National Museum of Anthropology as one of the greatest in the planet

Giorgio Tsoukalos says fans can expect him to talk about ancient alien mysteries in PH during his panel; calls our National Museum of Anthropology as one of the greatest in the planet #HistoryCon | via @vincepgarcia pic.twitter.com/WYMcMo01SD

— ABS-CBN News (@ABSCBNNews) August 10, 2018

8. Jaime Dempsey on the best part of shooting for "Ride N' Seek" here in the Philippines

Jaime Dempsey on the best part of shooting for ‘Ride N’Seek here in PH#HistoryCon | via @vincepgarcia pic.twitter.com/eGSM5y8uK9

— ABS-CBN News (@ABSCBNNews) August 10, 2018

9. Mong Chin of "Who Runs the World" gives her advice for all the young girls looking to begin a career on social media

Who Runs the World’s Mong Chin has advice for all those young girls looking to begin a career on social media #HistoryCon | via @vincepgarcia pic.twitter.com/UTXaEsP3p9

— ABS-CBN News (@ABSCBNNews) August 10, 2018

10. Xian Lim explains how different he is when he films "Celebrity Car Wars" than we when he shoots teleseryes and romantic comedies

Xian Lim on how fans can get to see him in a more relaxed, ‘different light’ in this third season of ‘Celebrity Car Wars’ #HistoryCon | via @vincepgarcia pic.twitter.com/K5JmV1yKrp

— ABS-CBN News (@ABSCBNNews) August 10, 2018

11. Diego Loyzaga on sharing the stage with History Channel stars: "This is a monumental day for me"

Xian Lim on how fans can get to see him in a more relaxed, ‘different light’ in this third season of ‘Celebrity Car Wars’ #HistoryCon | via @vincepgarcia pic.twitter.com/K5JmV1yKrp

— ABS-CBN News (@ABSCBNNews) August 10, 2018

12. Giorgio Tsoukalos talks about how the society, in general, has become more open-minded

Giorgio Tsoukalos talks about how the society, in general, has become more open-minded #HistoryCon | via @vincepgarcia pic.twitter.com/SNczn8CYgj

— ABS-CBN News (@ABSCBNNews) August 10, 2018

13. Giorgio Tsoukalos explains how we all have extraterrestrial genes

Giorgio Tsoukalos explains how we all have extraterrestrial genes #HistoryCon | via @vincepgarcia pic.twitter.com/9VVUlFWbd9

— ABS-CBN News (@ABSCBNNews) August 10, 2018

14. Katheryn Winnick really loved her experience in Palawan and Siquijor: "I will come back to America and tell everybody that they have to come to the Philippines."

Katheryn Winnick really loved her experience in Palawan and Siquijor: “I will come back to America and tell everybody that they have to come to the Philippines #HistoryCon @ABSCBNNews pic.twitter.com/stLIlb8O2Z

— Vincent Garcia (@vincepgarcia) August 10, 2018