Silver Hill Falls
This photo of Silver Hill Falls, part of the John Crow and Blue Mountains World Heritage Site in Jamaica, was included as part of its nomination file. Jamaica Conservation & Development Trust

It might be time to update your bucket list. Unesco, the arm of the United Nations that helps protect sites that are culturally or naturally significant, has just updated its list of World Heritage sites. The organization added 24 places to its list and made major modifications to three sites.

The additions include the likes of the Alamo, the Singapore Botanical Gardens, the Forth Bridge in Scotland and the Blue and John Crow Mountains in Jamaica. They join a list of more than 1,000 other sites, such as Westminster Abbey, the Palace of Versailles, the Taj Mahal and the Great Barrier Reef.

The list of newly inscribed sites includes:

Aqueduct of Padre Temleque Hydraulic System

This 16th Century aqueduct on the Central Mexican Plateau highlights the merging of European influences with Mesoamerican construction.

Arab-Norman Palermo and the Cathedral Churchs of the Cefalu and Monteale

These structures date to the era of the Norman kingdom of Sicily and include both religious and civil structures. These structures feature the mixing of origins and religions in the Mediterranean region.

The Forth Bridge

This railroad bridge spans Scotland's Firth of Forth and is the longest multi-span cantilever bridge in the world. Opening in 1890, it is an important milestone in bridge design and construction.

This site in southeastern Jamaica is the country's first World Heritage Site. Its mountainous terrain provided a refuge for the indigenous Tainos and then for runaway slaves. The area became culturally significant to those who moved there, but is also the site of much biodiversity.

Unesco just increased the size of the site from roughly 85,000 hectares to more than 126,000 hectares. The site hosts much geological diversity and biodiversity. The extension of this site will better protect the area, says the organization.

Located on the southwestern edge of South Africa, this is one of the world's greatest areas of terrestrial diversity. This includes several species related to the fynbos, a plant unique to the region.

Now, which location will be first on your itinerary?