Examples of websites using
Bureau Grot
(Bureau Grot is a sans-serif font designed by David Berlow and released by Font Bureau. The family consists of multiple styles, including regular and condensed widths, each available in a range of weights with matching italics)
with
Helvetica
(Helvetica is a sans serif font designed by Max Miedinger, Linotype Design Studio, and released by Linotype in 1957. It is available in a wide range of styles and weights)