Apr 18, 2013
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2014
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2015
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2016
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2017
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2018
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2019
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2020
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2021
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2022
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2023
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2024
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2025
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2026
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2027
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2028
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2029
International Day for Monuments and Sites
Worldwide observance
United States
Apr 18, 2030
International Day for Monuments and Sites
Worldwide observance
United States