Unique Logo Design to feature relevant icons

I am setting up a company called Holiday Rentals NI to provide short term holiday lettings to customers in Northern Ireland, so I want this logo to reflect the country and target my market audience. I have attached examples of famous sights that you could play about with incorporating:

Someone with knowledge on Northern Ireland and their landmarks would be preferred.

The sights would include

Titanic Building and Museum Belfast
Harland & Wolff Cranes
Giants Causeway
Carrick-a-rede Rope Bridge

Many thanks,
Mark